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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Adiantum alarconianum ： ウィキペディア英語版 Adiantum alarconianum ''Adiantum alarconianum'' is a South American maidenhair fern. First scientifically collected in the early 1800s in Ecuador, it is found in neighboring parts of Peru as well. Its iridescent stem scales help to differentiate it from other related ferns. ==Description== The leaves range from 30 to 50 cm in length, and vary from generally linear to egg-shaped, coming to a point at the tip. The leaf blade is cut into pinnae; the lower and basal pinnae are sometimes cut again into pinnules in the specimens wider at the base. The stem below the leaf blade (the stipe) may have a few short soft hairs and/or scales on the upper side, or be completely hairless. The stem passing through the leaf blade (the rachis) always has such hairs and/or scales on the upper side, but these do not usually extend to the rest of the rachis. When they occur, the hairs often branch into a star-like shape. The stem scales are iridescent, a distinctive feature of the species. The pinnae, which are alternate on the rachis, range in shape from oblong-falcate (somewhat sickle-shaped) to long-triangular. They are asymmetrical at the base, being attached directly (without petioles) to the rachis near one corner of the pinna. The upper surfaces of the pinnae are hairless; the false indusia occur along one edge. They are folded over the upper side of the leaf and are not divided. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Adiantum alarconianum」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.